# MotoRad ST22 Engine Coolant Safety Lever Radiator Cap for 2006-2016 Chrysler 300

### Specifications

Cap Depth: 1.48 in

Cap Finish: Stainless Steel

Coolant Recovery System: Open & Closed System

Filler Neck Outside Diameter: 1.54 in

Lever Type: Safety Lever

Material: Stainless Steel, Plastic, Rubber

Pressure Rating (PSI): 22

Quick Pressure Release: Yes

SAE Pressure Range (PSI): 20-24

Valve OD: 1.54 IN

### Features

-   Offer precise pressure control
-   Ensure the proper fit
-   Feature safety lever
-   Easy installation

### Product Details

Engine Coolant Safety Lever Radiator Cap (ST22) by MotoRad®. Pressure: 22 psi. MotoRad radiator caps are designed and manufactured to offer precise control for the automotive cooling system. MotoRad safety lever radiator caps utilize a lever that locks the cap to the filler neck requiring the lever be lifted before removal. When the lever is lifted, the valve pressurizing in the cooling system is opened and pressure is vented through the overflow tube making it safe to remove the radiator cap.

MotoRad radiator pressure caps are designed and manufactured to offer precise pressure control for the automotive cooling system. Most standard radiator caps are also offered in a version with a safety lever feature. MotoRad’s radiator caps are manufactured to meet all OEM requirements and each part is factory tested prior to shipping to customers. A slowly failing, worn out or faulty radiator cap can result in overheating, loss of coolant or even major engine damage.

One function of the radiator cap is to keep pressure on the cooling system. If the pressure on the system drops because of a failing radiator cap, the boiling point of the coolant also drops. If the boiling point drops enough, it can cause the engine to overheat.

If you replace a thermostat and the radiator cap is more than three years old, chances are is not holding to the same pressure as a new cap. Explain to your customer that by replacing the thermostat and the radiator cap, their vehicle should run within the specified operating temperature and the coolant system will be properly pressurized.

The radiator pressure cap is a very important component of the system. The cap monitors the pressure of the system and adjusts to maintain the desired pressure (normally in the 15 psi range). If an improper cap or a defective cap is used, the correct system pressure will not be maintained. If the system pressure is too low the coolant will be allowed to boil at unacceptable temperatures. If the system pressure is too high, damage to the system can occur, potentially causing loss of coolant and an engine overheating condition.

Brand: MotoRad

Part Number: ST22

UPC: 055644908885

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2012

Chrysler

300

2013

Chrysler

300

2014

Chrysler

300

2007

Chrysler

Aspen

2008

Chrysler

Aspen

2009

Chrysler

Aspen

2011

Dodge

Challenger

2012

Dodge

Challenger

2013

Dodge

Challenger

2014

Dodge

Challenger

2015

Dodge

Challenger

2013

Dodge

Charger

2014

Dodge

Charger

2015

Dodge

Charger

2006

Dodge

Durango

2007

Dodge

Durango

2008

Dodge

Durango

2009

Dodge

Durango

2008

Dodge

Viper

2009

Dodge

Viper

2010

Dodge

Viper

2013

Dodge

Viper

2014

Dodge

Viper

2015

Dodge

Viper

2016

Dodge

Viper

2010

Fiat

500

2012

Fiat

500

2013

Fiat

500

2014

Fiat

500

2015

Fiat

500

2008

Fiat

Idea

2011

Fiat

Linea

2012

Fiat

Panda

2013

Fiat

Punto

2013

Fiat

Uno

2014

Jeep

Grand Cherokee

2015

Jeep

Grand Cherokee

### FAQ

**Will this fit my vehicle?**  
Please verify your year, make, model, position, and any fitment notes using the Vehicle Fitment Table above before purchase.

**What part number is this?**  
The listed part number is ST22.

**Is this product designed for direct replacement?**  
Yes. This product is intended to match the compatible vehicle applications listed in the fitment table.

**Should I confirm fitment before ordering?**  
Yes. Always compare your original part, position, and vehicle details with the fitment table before ordering.

### Common Searches

-   Engine Coolant Safety Lever Radiator Cap for Chrysler 300
-   ST22 fitment
-   MotoRad Engine Coolant Safety Lever Radiator Cap
-   2012 Chrysler 300 Engine Coolant Safety Lever Radiator Cap

## Details

- **Price:** 12.66 CAD
- **Vendor:** MotoRad
- **Type:** Engine Coolant Safety Lever Radiator Cap
- **Tags:** 2006-2009 Dodge Durango, 2007-2009 Chrysler Aspen, 2008 Fiat Idea, 2008-2010, 2010, 2011 Fiat Linea, 2011-2015 Dodge Challenger, 2012 Fiat Panda, 2012-2014 Chrysler 300, 2012-2015 Fiat 500, 2013 Fiat Punto, 2013 Fiat Uno, 2013-2015 Dodge Charger, 2013-2016 Dodge Viper, 2014-2015 Jeep Grand Cherokee, Automotive, Engine Coolant Safety Lever Radiator Cap, MotoRad, ST22

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 12.66 CAD | In stock |

## Images

- MotoRad ST22 Engine Coolant Safety Lever Radiator Cap for 2006-2016 Chrysler 300

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/motorad-st22-engine-coolant-safety-lever-radiator-cap)
> Updated: 2026-08-17